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Regional Assemblages Of Lygus (Heteroptera: Miridae) In Montana Canola Fields, Sue Blodgett, R. A. Ritter, A. W. Lenssen, M. L. Taper
Regional Assemblages Of Lygus (Heteroptera: Miridae) In Montana Canola Fields, Sue Blodgett, R. A. Ritter, A. W. Lenssen, M. L. Taper
Sue Blodgett
Sweep net sampling of canola (Brassica napus L.) was conducted in 2002 and 2003 to determine Lygus (Heteroptera: Miridae) species composition and parasitism levels in four regions of Montana. Regardless of region or seasonal change, Lygus elisus (Van Duzee) was the dominant species in all canola fields sampled, averaging 60–99% of the total adult populations. Lygus borealis (Kelton), Lygus keltoni (Schwartz) and Lygus lineolaris (Palisot) were detected at much lower levels. Total lygus population density was greatest in the southwest and central regions. The northeast and southwest regions had the greatest lygus species diversity. The proportion of L. elisus increased …
Countrysides Transformed, Pamela Riney-Kehrberg
Countrysides Transformed, Pamela Riney-Kehrberg
Pamela Riney-Kehrberg
Rural and agricultural history provide their readers different perspectives on the ways in which the countryside has changed over the course of American history. Rural history approaches the question of change from the perspective of communities and families, while agricultural history generally eschews the social perspective for issues of crop production. Such is the case of two recent and important books in rural and agricultural history, Hal Barron's Mixed Harvest: The Second Great Transformationin the Rural North, 1870-1930 and Steven Stoll's The Fruits of Natural Advantage: The Making of the Industrial Countryside in California. While both authors are intimately concerned …